So is this how it works Doctor? You never interfere with the affairs of other peoples or planets, unless there are children crying?

It's a fez. I wear a fez now. Fezes are cool.

Rose: 'If you are an alien, how come you sound like you're from the north?' Doctor: 'Lots of planets have a north!

I always rip out the last page of a book. Then it doesn't have to end. I hate endings!

If you don't expect to like someone and then you do, that's an incredibly exciting moment.

When man invented fire, he didn't say, "Hey, let's cook." He said, "Great, now we can see naked bottoms in the dark.

It's a funny thing about stories. It doesn't feel like you make them up, more like you find them. You type and type and you know you haven't got it yet, because somewhere out there, there's that perfect thing -- the unexpected ending that was always going to happen. That place you've always been heading for, but never expected to go.